摘要
设计了一种由风机段、旋流除尘段和折流板脱水段,构成的矿用湿式多通道轴向离心除尘装置。运用数值方法计算了65个不同结构尺寸的旋流除尘段,得出优化的结构尺寸为:除尘段总长度L为1.5m,外壳半径R为0.4m,内芯体半径r为0.1m,螺旋通道个数n为4,单个螺旋通道的轴向长度a为0.22m。通过工程计算选择了P型折流板脱水器和FBD№6.0/2×15轴流风机。该除尘装置的性能参数为全尘除尘效率为94.4%,呼吸性粉尘除尘效率为73.3%,脱水率大于85%,总压损为1639Pa。
Named as an wetted axial multi-channel centrifugal dedusting device , a novel dust-controlling device was presented .The device consists of a fan section , an axial multi-channel spiral dedusting （ AMSD） section and a baf-fle dehydrator section .The calculations on AMSD section , which contained 65 models of different sizes , were con-ducted by numerical method .The size parameters were optimized as followed： （1） the length is L=1.5m, and （2） the outer cylinder radius is R=0.4m, and （3） the inner cylinder radius is r=0.1m, and （4） the number of helical channel is n=4, and （5） the length of a single helical channel is a=0 .22 m.Through engineering cal-culation, the ＂P＂baffles dehydrator and FBD№6 .0/2 ×15 axial fan were selected.The performance of the optimized device were obtained, as the dedusting efficiency of total dust was 94 .4%, the dedusting efficiency of respirable dust was 73.3%, the dehydration efficiency was bigger than 85%, and the pressure loss was＆amp;nbsp;1639Pa, respectively.
出处
《中国安全生产科学技术》
CAS
CSCD
2014年第5期134-141,共8页
Journal of Safety Science and Technology
基金
国家自然科学基金和上海宝钢集团公司联合基金资助(51074073)
国家自然科学基金委员会-神华集团有限公司煤炭联合基金资助(U1361118)
湖南省自然科学基金资助项目(13JJ8016)
深部岩土力学与地下工程国家重点实验室开放基金项目(SKLGDUEK1018)
煤矿安全开采技术湖南省重点实验室(湖南科技大学)开放基金资助项目(201105)
湖南科技大学研究生优秀学位论文培育项目(SNY005)
关键词
除尘装置
旋流脱尘
结构优化
性能参数
dedusting device
dust separated by centrifugation
size optimization
performance parameter
